build: fix building js2c with GN

zcbenz · zcbenz · commit 3e70908057fb · 2024-02-21T12:54:09.000+09:00
This is a follow-up to nodejs#51605.
diff --git a/unofficial.gni b/unofficial.gni
@@ -280,7 +280,10 @@ template("node_gn_build") {
     sources = [
       "tools/js2c.cc",
       "tools/executable_wrapper.h",
+      "src/embedded_data.cc",
+      "src/embedded_data.h",
     ]
+    include_dirs = [ "src" ]
   }
 
   action("run_node_js2c") {
